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| author | Stephane Eranian <eranian@hpl.hp.com> | 2006-12-07 02:14:01 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:01 +0100 |
| commit | 42ed458aa51337357d7632c64aed4528f923e829 (patch) | |
| tree | 7ac9aafa6d995bcca812c679fc56b2fd15ab8916 /include/asm-i386 | |
| parent | d7731c0ff69dc3f18ea020257e627dae4d214fdb (diff) | |
| download | kernel-crypto-42ed458aa51337357d7632c64aed4528f923e829.tar.gz kernel-crypto-42ed458aa51337357d7632c64aed4528f923e829.tar.xz kernel-crypto-42ed458aa51337357d7632c64aed4528f923e829.zip | |
[PATCH] i386: i386 add X86_FEATURE_PEBS and detection
Here is a patch (used by perfmon2) to detect the presence of the Precise Event
Based Sampling (PEBS) feature for i386. The patch also adds the cpu_has_pebs
macro.
- adds X86_FEATURE_PEBS
- adds cpu_has_pebs to test for X86_FEATURE_PEBS
Signed-off-by: stephane eranian <eranian@hpl.hp.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/cpufeature.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-i386/cpufeature.h b/include/asm-i386/cpufeature.h index 69ce35049a0..231672558c1 100644 --- a/include/asm-i386/cpufeature.h +++ b/include/asm-i386/cpufeature.h @@ -73,6 +73,7 @@ #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */ #define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* FXSAVE leaks FOP/FIP/FOP */ #define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */ +#define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */ /* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */ #define X86_FEATURE_XMM3 (4*32+ 0) /* Streaming SIMD Extensions-3 */ @@ -135,6 +136,7 @@ #define cpu_has_pmm boot_cpu_has(X86_FEATURE_PMM) #define cpu_has_pmm_enabled boot_cpu_has(X86_FEATURE_PMM_EN) #define cpu_has_ds boot_cpu_has(X86_FEATURE_DS) +#define cpu_has_pebs boot_cpu_has(X86_FEATURE_PEBS) #endif /* __ASM_I386_CPUFEATURE_H */ |